<template>
  <div class="table">
    <div class="container">
      <div class="handle-box">
        <el-button type="primary" size="mini" @click="delAll">批量删除</el-button>
        <el-input v-model="select_word" size="mini" placeholder="请输入歌手名" class="handle-input"></el-input>
        <el-button type="primary" size="mini" @click="centerDialogVisible = true">添加歌手</el-button>
      </div>
    </div>
    <el-table size="mini" ref="multipleTable" border style="width:100%" height="680px" :data="data"
              @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="40"></el-table-column>
      <el-table-column label="歌手图片" width="110" align="center">
        <template slot-scope="scope">
          <div class="singer-img">
            <img :src="getUrl(scope.row.pic)" style="width:100%"/>
          </div>
          <el-upload :action="uploadUrl(scope.row.id)" :before-upload="beforeAvatorUpload"
                     :on-success="handleAvatorSuccess">
            <el-button size="mini">更新图片</el-button>
          </el-upload>
        </template>
      </el-table-column>
      <el-table-column prop="name" label="歌手" width="120" align="center"></el-table-column>
      <el-table-column label="性别" width="50" align="center">
        <template slot-scope="scope">
          {{changeSex(scope.row.sex)}}
        </template>
      </el-table-column>
      <el-table-column label="生日" width="120" align="center">
        <template slot-scope="scope">
          {{attachBirth(scope.row.birth)}}
        </template>
      </el-table-column>
      <el-table-column prop="location" label="地区" width="100" align="center"></el-table-column>
      <el-table-column label="简介">
        <template slot-scope="scope">
          <p style="height:100px;overflow:scroll">{{scope.row.introduction}}</p>
        </template>
      </el-table-column>
      <el-table-column label="歌曲管理" width="110" align="center">
        <template slot-scope="scope">
          <el-button size="mini" @click="songEdit(scope.row.id,scope.row.name)">歌曲管理</el-button>
        </template>
      </el-table-column>
      <el-table-column label="操作" width="150" align="center">
        <template slot-scope="scope">
          <el-button size="mini" @click="handleEdit(scope.row)">编辑</el-button>
          <el-button size="mini" type="danger" @click="handleDelete(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <div class="pagination">
      <el-pagination
        background
        layout="total,prev,pager,next"
        :current-page="currentPage"
        :page-size="pageSize"
        :total="tableData.length"
        @current-change="handleCurrentChange"
      >
      </el-pagination>
    </div>

    <el-dialog title="添加歌手" :visible.sync="centerDialogVisible" width="400px" center>
      <el-form :model="registerForm" ref="registerForm" label-width="80px">
        <el-form-item prop="name" label="歌手名" size="mini">
          <el-input v-model="registerForm.name" placeholder="歌手名"></el-input>
        </el-form-item>
        <el-form-item label="性别" size="mini">
          <el-radio-group v-model="registerForm.sex">
            <el-radio :label="0">女</el-radio>
            <el-radio :label="1">男</el-radio>
            <el-radio :label="2">组合</el-radio>
            <el-radio :label="3">不明</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item prop="birth" label="生日" size="mini">
          <el-date-picker type="date" placeholder="选择日期" v-model="registerForm.birth"
                          style="width:100%"></el-date-picker>
        </el-form-item>
        <el-form-item prop="location" label="地区" size="mini">
          <el-input v-model="registerForm.location" placeholder="地区"></el-input>
        </el-form-item>
        <el-form-item prop="introduction" label="简介" size="mini">
          <el-input v-model="registerForm.introduction" placeholder="简介" type="textarea"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
                <el-button size="mini" @click="centerDialogVisible = false">取消</el-button>
                <el-button size="mini" @click="addSinger">确定</el-button>
            </span>
    </el-dialog>

    <el-dialog title="修改歌手" :visible.sync="editVisible" width="400px" center>
      <el-form :model="form" ref="form" label-width="80px">
        <el-form-item prop="name" label="歌手名" size="mini">
          <el-input v-model="form.name" placeholder="歌手名"></el-input>
        </el-form-item>
        <el-form-item label="性别" size="mini">
          <el-radio-group v-model="form.sex">
            <el-radio :label="0">女</el-radio>
            <el-radio :label="1">男</el-radio>
            <el-radio :label="2">组合</el-radio>
            <el-radio :label="3">不明</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="生日" size="mini">
          <el-date-picker type="date" placeholder="选择日期" v-model="form.birth" style="width:100%"></el-date-picker>
        </el-form-item>
        <el-form-item prop="location" label="地区" size="mini">
          <el-input v-model="form.location" placeholder="地区"></el-input>
        </el-form-item>
        <el-form-item prop="introduction" label="简介" size="mini">
          <el-input v-model="form.introduction" placeholder="简介" type="textarea"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
                <el-button size="mini" @click="editVisible = false">取消</el-button>
                <el-button size="mini" @click="editSave">确定</el-button>
            </span>
    </el-dialog>

    <el-dialog title="删除歌手" :visible.sync="delVisible" width="300px" center>
      <div align="center">删除不可恢复，是否确定删除？</div>
      <span slot="footer">
                <el-button size="mini" @click="delVisible = false">取消</el-button>
                <el-button size="mini" @click="deleteRow">确定</el-button>
            </span>
    </el-dialog>
  </div>
</template>

<script>
  import {setSinger, getAllSinger, updateSinger, delSinger} from '../api/index'
  import {mixin} from '../mixins/index'

  export default {
    mixins: [mixin],
    data () {
      return {
        centerDialogVisible: false, //添加弹窗是否显示
        editVisible: false,         //编辑弹窗是否显示
        delVisible: false,          //删除弹窗是否显示
        registerForm: {      //添加框
          name: '',
          sex: '',
          birth: '',
          location: '',
          introduction: ''
        },
        form: {      //编辑框
          id: '',
          name: '',
          sex: '',
          birth: '',
          location: '',
          introduction: ''
        },
        tableData: [],
        tempData: [],
        select_word: '',
        pageSize: 5,    //分页每页大小
        currentPage: 1,  //当前页
        idx: -1,          //当前选择项
        multipleSelection: []   //哪些项已经打勾
      }
    },
    computed: {
      //计算当前搜索结果表里的数据
      data () {
        return this.tableData.slice((this.currentPage - 1) * this.pageSize, this.currentPage * this.pageSize)
      }
    },
    watch: {
      //搜索框里面的内容发生变化的时候，搜索结果table列表的内容跟着它的内容发生变化
      select_word: function () {
        if (this.select_word === '') {
          this.tableData = this.tempData
        } else {
          this.tableData = []
          for (let item of this.tempData) {
            if (item.name.includes(this.select_word)) {
              this.tableData.push(item)
            }
          }
        }
      }
    },
    created () {
      this.getData()
    },
    methods: {
      //获取当前页
      handleCurrentChange (val) {
        this.currentPage = val
      },
      //查询所有歌手
      getData () {
        this.tempData = []
        this.tableData = []
        getAllSinger().then(res => {
          this.tempData = res
          this.tableData = res
          this.currentPage = 1
        })
      },
      //添加歌手
      addSinger () {
        let d = this.registerForm.birth
        let datetime = d.getFullYear() + '-' + (d.getMonth() + 1) + '-' + d.getDate()
        let params = new URLSearchParams()
        params.append('name', this.registerForm.name)
        params.append('sex', this.registerForm.sex)
        params.append('pic', '/img/singerPic/hhh.jpg')
        params.append('birth', datetime)
        params.append('location', this.registerForm.location)
        params.append('introduction', this.registerForm.introduction)

        setSinger(params)
          .then(res => {
            if (res.code === 1) {
              this.getData()
              this.notify('添加成功', 'success')
            } else {
              this.notify('添加失败', 'error')
            }
          })
          .catch(err => {
            console.log(err)
          })
        this.centerDialogVisible = false
      },
      //弹出编辑页面
      handleEdit (row) {
        this.editVisible = true
        this.form = {
          id: row.id,
          name: row.name,
          sex: row.sex,
          birth: row.birth,
          location: row.location,
          introduction: row.introduction
        }
      },
      //保存编辑页面修改的数据
      editSave () {
        let d = new Date(this.form.birth)
        let datetime = d.getFullYear() + '-' + (d.getMonth() + 1) + '-' + d.getDate()
        let params = new URLSearchParams()
        params.append('id', this.form.id)
        params.append('name', this.form.name)
        params.append('sex', this.form.sex)
        params.append('birth', datetime)
        params.append('location', this.form.location)
        params.append('introduction', this.form.introduction)

        updateSinger(params)
          .then(res => {
            if (res.code === 1) {
              this.getData()
              this.notify('修改成功', 'success')
            } else {
              this.notify('修改失败', 'error')
            }
          })
          .catch(err => {
            console.log(err)
          })
        this.editVisible = false
      },
      //更新图片
      uploadUrl (id) {
        return `${this.$store.state.HOST}/singer/updateSingerPic?id=${id}`
      },
      //删除一名歌手
      deleteRow () {
        delSinger(this.idx)
          .then(res => {
            if (res) {
              this.getData()
              this.notify('删除成功', 'success')
            } else {
              this.notify('删除失败', 'error')
            }
          })
          .catch(err => {
            console.log(err)
          })
        this.delVisible = false
      },
      //转向歌曲管理页面
      songEdit (id, name) {
        this.$router.push({path: `/Song`, query: {id, name}})
      }
    }
  }
</script>

<style scoped>
  .handle-box {
    margin-bottom: 20px;
  }

  .singer-img {
    width: 100%;
    height: 80px;
    border-radius: 5px;
    margin-bottom: 5px;
    overflow: hidden;
  }

  .handle-input {
    width: 300px;
    display: inline-block;
  }

  .pagination {
    display: flex;
    justify-content: center;
  }
</style>
